Carl Friedrich Oertwig born 1817 in Prussia
married Friederike ---, born about 1816 in Prussia
- immigrated on the Habsburg, arriving in New York on 7 May 1880.

[This man may be the one listed in records in Nahausen, where a Carl Friedrich Oertwig was born 22 November 1817 to Gottfried Oertwig and his wife Dorothea Maria Niemann. He was baptized 30 November 1817 in Nahausen. Unfortunately, later records which could include the marriage of Carl and Friedrich Oertwig, along with the baptisms of their children, are not available.]

They were in Kaskaskia Township, Fayette County, Illinois, in the 1880 census, but have not been identified in any later censuses or other records. Mrs. Oertwig was listed as Friederike on the passenger list, but as Lucretia in the 1880 census.
Known children

Louisa Oertwig, born about 1849
- immigrated May 1880 on the Habsburg
- living with her parents in the 1880 census. No more information